Wrench.



J. JOHNSON.

WRENCH. APPLICATION FILED MAY13. ms.

Emma/M0 JOHN demsow Patentad July 10, 191?.

turn sra'rn earn in.

JOHN JOHNSON, OF HONOLULU, TERRITORY OF HAWAII.

WRENCH.

Application filed May 13, 1916.

T 0 all whom it may con/001% Be it known that I, JOHN Johnson, a citizen of the United States, residing at Honolulu, Territory of Hawaii, have invented certain new and useful Improvements in l/Vrenches, of which the following is aspecification, reference being had to the accompanying drawings.

This invention relates to wrenches, and particularly to wrenches for removing nuts.

The general object of the invention is the provision of a wrench of this character peculiarly designed for use in places where on dinary wrenches are impossible of use on account of inability to swing the wrench.

One of the particular objects of the invention is to provide a wrench having nutengaging spikes, as they may be termed, the body of the wrench being adapted to be engaged with the bolt and being provided with means whereby the spikes may be forced down into the material of the nut so that a rotation of the wrench in a direction to dis engage the Wrench from the bolt will also remove the nut.

A further object of the invention is to provide a device of'this character in which the shank of the wrench is formed in two sections, one of these sections being formed as a hammer or like implement and made detachable from the other section.

Other objects will appear in the course of the following description. My invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a side elevation of improved wrench, the lower portion being in section, the view also showing a bolt and a nut in section;

Fig. 2 is an elevation of the lower portion of the wrench and the nut;

Fig. 3 is a section through the shank of the wrench looking downwardly upon the top of the head 16;

Fig. 1 is a plan view of the spanner wrench used in rotating the annulus 26.

Referring to these drawings, it will be seen that my improved wrench includes a shank formed in two sections, one of these sections which I will hereafter term the base section being designated 10, and the other section which I will'term the handle section being designated 11, this lattersection be ing provided at one end with a reduced por tion 12 and at its other end with a handle 13 which has the form of a hammer head Specification of Letters Patent.

Patented July 10, 1917.

Serial No. 97,358.

and which may be provided with a punch or like point 1 1 at one extremity. The reduced portion 12 of the section 11 is formed with an annular groove 15.

The end of the section 10 opposite from its point of attachment to the handle section 11 has an enlargement or head formed of a disk 16 having a plurality of passages 17 through it, and a disk 18 held to the section or disk 16 by screws. The screws which are used for this purpose are designated 19 and have their heads countersunk in the face of the disk. The purpose of making the disks l6 and 18 in two parts or sections and engaging them with each other by means of the screws 19 is to provide for adjusting the disk 18 toward the disk 16, as will hereinafter more fully appear. The disk 16, as pre viously stated, is formed integral with the section 10 and has a central recess 20 which is screw threaded. The annular disk 18 is also screw threaded, as at 21, so that the bore thus formed may engage with the bolt 22 to remove the nut 23 on said bolt. Another reason for forming the disk 18 separate from the disk 16 is to permit disks 18 to be used having smaller apertures than the recess 20 so as to engage bolts having smaller diameters than the diameter of the recess 20. Passing through the passages 17 are a plurality of spikes 24; or bits having sharp pointed lower extremities.

The shank section 10 is provided with a lug 25 which forms a section of a screw thread, the thread extending reversely to the screw threads 21. Surrounding the shank section 10 is an annulus, designated generally 26, which is formed in two sections 27 and 28 engaged with each other by screws or in any suitable manner, the inner or confronting faces of these sections 27 and 28 being formed with a spiral groove 29, this groove forming a section of a complete screw thread but only extending partly around the central aperture of this annulus, and the exterior face of the annulus is formed with a plurality of recesses 30 adapted for engagement with the stud 81 of a spanner wrench 82.

With. the parts as in the position heretofore described, if it be desired to remove wardly on the base section, the swiveled engagement between the handle section and the base section permitting the rotation of the base section without any rotation of the handle section. lVhen the lower face of the disk 18 is in approximate contact with the nut the spanner wrench 32 is applied tothe annulus 26 and the annulus rotated. In its rotation it will force downward upon the bits 24 and force these bits into the upper face of the nut, the base section 10 being held from any upward movement by the on gagement of the disk 18 with the bolt. A rotation of the annulus 26 will therefore act to force these spikes or bits 24: into the materialof the nut and when the annulus has been turned the full extent of its movement the end wall of the groove 29 will engage the pin and the shank section 10 with the disks 16 and 18 will be rotated together in a direction to unscrew the disk 21 and disk 16 from its engagement with the bolt. Inasmuch as the bits 24 have been forced into the material of the nut the nut will also unscrew.

It will be seen that the greater the power applied to the annulus 26 the greater will be the force urging the bits into the material of the nut and the greater the rotative force applied to the nut.

The screw 33 engages the section 10 with the reduced portion 12 and projects into the groove 15 so as to provide for a swiveled engagement between the handle 11 and the shank base 10, and by removing this screw the handle section 11 may be removed and the handle used as a hammer.

lVhile I have illustrated a form of my invention which I believe to be very effective in practice, yet it is to be understood that many changes might be made without departing from the spirit of the invention.

Having described the invention, what I claim is:

1. In a wrench, a shank, an annular interiorly screw threaded disk carried by the shank and rotatable therewith, nut-engaging bits carried upon the disk and longitudinally movable therethrough, and means rotatably mounted upon the shank for urging the bits through the disk, said means also providing for applying a rotative force to the shank to cause the rotation of the shank.

2. A wrench of the character described including a shank having an annular head at one end, the head being interiorly screw threaded, a plurality of bits disposed in passages in the head and longitudinally movable therethrough, and means having screw threaded engagement with the shank and rotatable therearound for forcing the bits through thehead and into engagement with the nut and applying rota-tive force to the shank and head;

lease the head from a bolt being driven downwardly on the shank and into engagement with the bits and forcing said bits through the head and into engagement with the nut, a continued movement of the annulus acting to rotate the shank and head and withdraw it from engagement with the'head.

' l. A wrench of the character described including "a shank, an interiorly screw threaded annular head carried upon one-end of the shank and formed in two sections detachably connected to each other, the head being formed with a plurality-of longitudinally extending passages, aplurality of-bits slidingly disposed in'said passages foryprojecting through the head, a stud 'on the shank, and an annular member having an interlor splral groove less than a complete clrcle and 1nto whlch the stud pro ects, the

spiral being reversed in direction *to the direction of the screw threads on :the head' whereby when the head is engaged with the bolt and the annular member is rotated in one direction it will force the bits through the head into engagement with the nut on the bolt and successively rotate the shank and head in a direction to unscrew the head from the bolt.

In a wrenchof'the character described, a shank made in two sections, one of said sections forming a base section and the other a handle section, the handle section having swiveled detachable engagement with the base section, an annular hea'd formed on the base section and interiorly screw threaded and formed with a plurality of passages extending parallel to the axis of the shank, nut-engaging bits disposed in said passages and adapted to be forced therethrough into engagement with the nut, an annular member mounted upon the shank and formed in two detachable sections, the annular mem ber having a spiral groove upon its inner face, the spiral being directed reversely to the screwthreads on the head, the stud on the shank engaging in said spiralgroove,

the end wall of the groove forming-a stop with which the stud is adapted to engage, and means whereby said annular member may be rotated whereby when .the head is engaged with the bolt a rotation of the annular member will force the bitsthrough the head into engagement with the nut and In testimony 'WhBIG-Of I hereunto my a further rotation of the annular member signature in the presence of two Witnesses. will cause a unitary rotation of the annular member, the base member, and the head to JOHN JOHNSON. .5 thereby unscrew the head from its engage- Witnesses:

ment with the bolt and simultaneously re- FRANK P. RODRI UES,

moving the nut. MITCHELL KAAIALIL Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. (1. 

